Effect of Fe-doping on the structural, optical and magnetic properties of ZnO nanostructures synthesised by co-precipitation method

Fabbiyola, S.; Kennedy, L. John; Ratnaji, T.; Vijaya, J. Judith; Aruldoss, Udaya; Bououdina, M.

doi:10.1016/j.ceramint.2015.09.110

Cited by 51 publications

(15 citation statements)

References 28 publications

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“…The dopant ion type, synthesis environment, crystal anisotropies, and crystallinity are responsible for the experimentally observed magnetic properties. 74 In addition to this, micro-structural parameters like creation of strain, vacancies or defect states also affects the magnetic behavior. Further, the magnetic moment per Cu atom is calculated using eqn (5)…”

Section: Magnetic Measurementsmentioning

confidence: 99%

Influence of Cu doping on the local electronic and magnetic properties of ZnO nanostructures

et al. 2020

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Section: Magnetic Measurementsmentioning

confidence: 99%

Influence of Cu doping on the local electronic and magnetic properties of ZnO nanostructures

et al. 2020

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“…Among the physical methods, pulsed laser deposition, magnetron sputtering, electrodeposition, microwave-assisted technique, electron beam evaporation, are found [1-6]. Hydrothermal process, sol-gel, solochemical, chemical vapor deposition, spray pyrolysis and precipitation methods are examples of chemical techniques [7][8][9][10][11]. Physical techniques usually need relatively expensive equipment with high temperatures and high vacuums.…”

Section: Introductionmentioning

confidence: 99%

Studies on the Growth Control of ZnO Nanostructures synthesized by the Chemical Method

2018

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ZnO nanostructures were synthesized through a chemical method using different Zn precursors and hexamethylenetetramine (HMTA) at 90 °C. The effects of the reactants on the morphological evolution of ZnO nanorods were investigated. The samples were characterized by using XRD, SEM, EDX and BET. The hexagonal wurtzite phase of ZnO was confirmed by X-ray diffraction (XRD). The performed analysis indicated that different morphologies were obtained by changing the reactants.Se sintetizaron nanoestructuras de ZnO por método químico usando diferentes precursores de Zn y hexametilentetraamina (HMTA) a 90 °C y se investigaron los efectos de los reactivos sobre la evolución morfológica de las nanovarillas de ZnO. Las muestras se caracterizaron mediante DRX, SEM, EDX y BET. Se confirmó la fase hexagonal wurtzita para todas las muestras por difracción de rayos x (DRX). Los análisis realizados indican que cambiando los reactivos se obtienen diferentes morfologías. Palabras clave:ZnO; crecimiento de cristales; nanoestructuras; síntesis química.

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“…In bulk ZnO, the centers are not underactive ionized, which is a response to the absence of blue emission in bulk ZnO [27]. The violet luminescence around 424 nm (2.92 eV) is probably due to the [5,30,31] radiative defects related to the interface traps that exist at the grain boundaries [23,24] of ZnO and that are emitted from the radiative transitions between these levels and the valence band. In our study, the XRD results (Fig.…”

Section: Photoluminescence Analysismentioning

confidence: 98%

Effects of Annealing Temperature and Dopant Concentration on the Structural, Optical, and Magnetic Properties of Iron-Doped ZnO Samples

2017

Aug. 2017 Thailand International Conferences BackICMBPS-17, ICCSIT-17, LHEBC-17, IETCIA-17, ICBEFS-17, CM3E-17, AHSS-17, CBCE-1

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This paper reports on the structural, optical, and magnetic properties of as-prepared and annealed Zn 1-x Fe x O (0.02≤x≤0.08) powders synthesized using the solid-state reaction method. X-ray diffraction (XRD) studies showed that Fe was incorporated into the ZnO lattice. Ultraviolet-Visible (UV-vis) spectrophotometry measurements revealed that the bandgap initially increased and then decreased with Fe doping. Photoluminescence (PL) studies confirmed the formation of oxygen vacancies (V O) in all of the samples. All of the samples exhibited ferromagnetic behavior at room temperature (RT). Ferromagnetic behavior decreased with increased Fe concentrations, due to the increase in the number of Fe atoms occupying the neighboring cation lattice sites, which resulted in an antiferromagnetic configuration. Ferromagnetic behavior also decreased with the increase in the annealing temperature (T A) due to the reduction of defects and/or V O. However, our results indicate that the ferromagnetic property is intrinsic to the ZnO system due to defects and/or V O , and the extrinsic impurity origin was excluded..

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Effect of Fe-doping on the structural, optical and magnetic properties of ZnO nanostructures synthesised by co-precipitation method

Cited by 51 publications

References 28 publications

Influence of Cu doping on the local electronic and magnetic properties of ZnO nanostructures

Influence of Cu doping on the local electronic and magnetic properties of ZnO nanostructures

Studies on the Growth Control of ZnO Nanostructures synthesized by the Chemical Method

Effects of Annealing Temperature and Dopant Concentration on the Structural, Optical, and Magnetic Properties of Iron-Doped ZnO Samples

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